. Author manuscript; available in PMC: 2014 Feb 1.

Published in final edited form as: Aliment Pharmacol Ther. 2012 Dec 3;37(3):10.1111/apt.12171. doi: 10.1111/apt.12171

Table 3.

Psychological Characteristics of Study Sample

	ACTIVE INTERVENTION	CONTROL	P-VALUE

GI symptom severity	10.1±4.2	12.6±3.7	0.01*

IBS-QoL	67.4±16.2	63.8±18.4	0.21

HAD
– Anxiety	9.8±3.5	7.6±4.6	0.04*
– Depression	4.7±3.9	5.4±4.3	0.39

VSI	42.2±16.9	38.2±18.4	0.34

Coping skills
- Catastrophizing	12.0±7.8	9.5±7.3	0.67
- Control	2.5±1.3	2.3±1.2	0.18
- Symptom Change	2.3±1.4	2.0±1.2	0.16

NOTE. Assessment measures at baseline in the intervention (psycho-education) and control (waitlisted) groups, displayed as mean ± SD.

Measures: 1. GI symptom severity; 2. IBS-QoL: IBS Quality of Life Measure(37, 38); 3. HAD: Hospital Anxiety and Depression(39,40); 4. VSI: Visceral Sensitivity Index(36); 5. Coping Skills (Catastrophizing, Control, Symptom Change)(41)